Installation Guide
100 Nm
Width across flats :
54 mm (2.13 in)
1
2
3
1
4
Open
Close
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5
© Danfoss A/S (MWA), 2014-12
6
DKRCI.PI.HT0.F7.02 / 520H34271
027R9792
027R9792
Motor operated valve, type ICMTS
with actuator, type ICAD 600A-TS
Note:
Refrigerants
The ICMTS is specifically designed for high
pressure R744 applications.
The valve is only recommended for use in closed
circuits. For further information, please contact
Danfoss.
Remove all parts from the valve body
before welding or soldering (as shown
in fig. 3). It is important to remove
the seat (fig. 6, pos. 2) as the heat will
damage the seat.
Reassemble and tighten of seat (fig.
6, pos. 2):
Tools:
ICMTS 20-A/ICM 20-A33
Socket wrench:
13 mm (0.51 in.)
Temperature range
Media:
–60/+120°C (–76/+248°F)
Ambient: –30/+50°C (–22/+122°F)
ICMTS 20-B/ICMTS 20-C
Allen key(hexagon socket wrench):
12 mm (0.47 in)
ENGLISH
Installation
Pressure
The valves are designed for a max.
working pressure of 140 bar g (2030 psig).
Technical data
ICMTS is a balanced valve which remains in its
position. The return function must be provided
with the actuator used.
The ICMTS can be used in suction, liquid, hot gas
and liquid/vapour lines. The ICMTS regulates the
flow of the medium by modulation or the on/
off function, depending on the control impulse
to the actuator. Refer to the technical leaflet for
details on design and regarding selections.
The ICMTS valve is designed for use with the
ICAD 600A-TS actuator from Danfoss. The
ICAD 600A-TS actuator on the ICMTS ensures
compatibility with the regulators provided
by Danfoss plus a range of other controllers,
especially PLC controllers. A control signal from
a Danfoss controller or PLC will activate the
ICAD 600A-TS motor and, through a magnetic
coupling, rotate the spindle in the ICMTS to
make the cone move vertically. A Danfoss EKC
326 or EKC 326A controller is typically used for
high pressure applications.
Valve sizes
ICMTS is available in sizes from ICMTS 20A-33
(kv : 0.2 m3/h) to ICMTS 20-C (kv : 4.6 m3/h).
Installation
ICMTS + ICAD 600A-TS can be installed in
horizontal pipelines with the actuator pointing
upwards (fig. 1).
The motor can be mounted in any position
before locking it with the 3 Allen screws (fig. 6,
pos. 1).
The ICMTS valve must be installed with the
arrow in the direction of flow.
When installing an ICMTS, refrigerant must
not be allowed to escape and dirt must not be
allowed to enter the valve.
The valve is designed to withstand a high
internal pressure. However, the piping system
should be designed to avoid liquid traps and
reduce the risk of hydraulic pressure caused by
thermal expansion. It must be ensured that the
valve is protected from pressure transients like
“liquid hammer” in the system.
ICMTS valves must not be mounted in systems
where the outlet side of the valve is open to
atmosphere. The outlet side of the valve must
always be connected to the system or properly
capped off, such as the case with a welded-on
end plate.
Welding or soldering (fig. 3)
The top cover, complete with function module,
should be removed before welding or soldering
to prevent damage to O-rings and Teflon (PTFE)
in the function module and to avoid getting
welding debris in the module.
2
The internal surfaces and weld
connections of the enclosed ICMTS valve have been applied with
an anti-corrosion treatment.
In order to maintain the effectiveness of this
anti-corrosion treatment, it is important to
ensure that the valve is disassembled just
prior to commencing the welding / brazing
process.
In the event that the function modules
are to be left disassembled for any length
of time, please ensure that the function
modules are further protected by placing
in a polyethylene bag or by applying a rust
protection agent (e.g. refrigeration oil or
BRANOROL) on the surfaces.
Only materials and welding methods,
compatible with the valve body material, must
be welded to the valve body. The valve should
be cleaned internally to remove welding debris
on completion of welding and before the valve
is reassembled.
Avoid welding debris and dirt in the
valve body and the function module. The valve
body must be free from stresses (external loads)
after installation.
Manual operation
A magnetic coupling can be used to rotate
the spindle manually if the actuator has been
removed. To make use of the manual operation,
a multi-function tool (optional) is used (see fig.
5). The code number for the multi-function tool
is 027H0181.
Manual operation is also possible with the
actuator mounted on the valve and the power
supply connected to the actuator. If the signal
connections are wired to the actuator, it is
possible to use the manual operation function
built into the actuator electronics which allows
the motor to step in 1% increments meaning
that 100 steps will correspond to a fully open
valve. Please refer to the separate instruction
manual on ICAD to address the manual function.
Precise identification of the valve is made via the
ID. After welding, the external surface around
the connections of the valve body must be
protected to prevent against corrosion with a
suitable coating.
When repainting the valve, it is recommended to
protect the ID plate.
Assembly
Remove welding debris and any dirt from pipes
and valve body before assembly. Check that the
cone has been fully screwed back towards the
top cover before it is mounted in the valve body.
Use the manual magnetic tool (fig. 5) to achieve
rotation through the top. A small amount of
refrigeration oil on both O-rings can make the
insert easier to install into the valve body.
Tightening
Tighten the top cover/function module with a
torque wrench to the value indicated in fig. 2.
Maintenance
Service
A precise service schedule cannot be given for
the valve as service intervals will depend on
operating conditions, i.e. how often the valve
operates and the amount of impurities and dirt
the system carries.
The ICMTS valves are easy to dismantle and
all parts inside can be replaced by changing the
function module.
Do not open the valve while the valve is still
under pressure.
Be aware that the valve can be under pressure
from both sides and that the manual magnet
tool (fig. 5) can be used to open the seat to
equalise pressure internally before removing the
top cover.
Replacement of the function module
- Remove the old module.
- Oil the O-rings on the new module with a
small amount of refrigeration oil.
The spindle inside the valve must
not be greased or oiled (fig. 4). Old o-rings cannot be reused.
Use only original Danfoss parts, including o-rings
and gaskets for replacement. Materials of new
parts are certified for the relevant refrigerant.
In cases of doubt, please contact Danfoss.
Drawings are only for illustration, not for
dimensioning or construction.
Danfoss accepts no responsibility for errors
and omissions. Danfoss Industrial Refrigeration
reserves the right to make changes to products
and specifications without prior notice.
Insulation
Insulating the valve and its actuator is only
necessary if an energy consideration in the plant
requires this. Regarding the function of the
ICMTS + ICAD 600A-TS, no insulation is necessary
when kept inside temperature limits.
Surface treatment and identification
The ICMTS valves are surface treated from
factory. If further corrosion protection is
required, the valves can be painted.
Note:
Magnet coupling must be protected.
DKRCI.PI.HT0.F7.02 / 520H3427
© Danfoss A/S (MWA), 2014-12